High-carbon biogenic reagents and uses thereof

Patent metadata

Field	Value
Publication number	US-11879107-B2
Application number	US-202117391162-A
Country	US
Kind code	B2
Filing date	Aug 2, 2021
Priority date	Apr 15, 2011
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu/lb, 13,000 Btu/lb, 14,000 Btu/lb, or 14,500 Btu/lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects. The structural objects may have a structure and/or strength that derive from the feedstock, heat rate, and additives.

First claim

We claim:

1. A taconite pellet addition composition comprising, on a dry basis:
at least about 55 wt % total carbon;
at most about 5 wt % hydrogen;
at most about 1 wt % nitrogen;
at most about 0.5 wt % phosphorus;
at most about 0.2 wt % sulfur;
a binder; and
an additive selected from a metal, a metal oxide, a metal hydroxide, a metal halide, or a combination thereof;
wherein the additive is taconite ore powder.

2. The taconite pellet addition composition of claim 1 , further comprising a second additive, wherein the second additive is selected from magnesium, manganese, aluminum, nickel, chromium, silicon, boron, cerium, molybdenum, phosphorus, tungsten, vanadium, iron halide, iron chloride, iron bromide, magnesium oxide, dolomite, dolomitic lime, fluorite, fluorospar, bentonite, calcium oxide, lime, or a combination thereof.

3. The taconite pellet addition composition of claim 1 , wherein the taconite pellet addition composition comprises at least about 70 wt % total carbon on a dry basis.

4. The taconite pellet addition composition of claim 1 , wherein the taconite pellet addition composition comprises at least about 95 wt % total carbon on a dry basis.

5. The taconite pellet addition composition of claim 1 , wherein the taconite pellet addition composition is substantially free of fossil fuel.

6. The taconite pellet addition composition of claim 1 , wherein the total carbon consists essentially of biogenic carbon.

7. A taconite pellet addition composition comprising, on a dry basis:
at least about 55 wt % total carbon;
at most about 5 wt % hydrogen;
at most about 1 wt % nitrogen;
at most about 0.5 wt % phosphorus;
at most about 0.2 wt % sulfur;
taconite ore power;
a binder; and
an additive selected from an acid or a salt thereof, or a base or a salt thereof.

8. The taconite pellet addition composition of claim 7 , wherein the additive is selected from sodium hydroxide, potassium hydroxide, magnesium oxide, hydrogen bromide, hydrogen chloride, sodium silicate, potassium permanganate, or a combination thereof.

9. The taconite pellet addition composition of claim 7 , wherein the taconite pellet addition composition comprises at least about 70 wt % total carbon on a dry basis.

10. The taconite pellet addition composition of claim 7 , wherein the taconite pellet addition composition comprises at least about 95 wt % total carbon on a dry basis.

11. The taconite pellet addition composition of claim 7 , wherein the taconite pellet addition composition is substantially free of fossil fuel.

12. The taconite pellet addition composition of claim 7 , wherein the total carbon consists essentially of biogenic carbon.

Assignees

• Carbon Tech Holdings Llc

Inventors

• Despen Daniel J
• Mennell James A
• Filips Steve

Classifications

• C10B57/06

  containing additives · CPC title

• C10L5/447 Primary

  Carbonized vegetable substances, e.g. charcoal, or produced by hydrothermal carbonization of biomass · CPC title

• B01J21/18

  Carbon · CPC title

• C01B32/312

  Preparation · CPC title

• C01B32/318

  characterised by the starting materials · CPC title